d. 1005, Monzievaird, Scotland. King of the Scots (from 997), son of Dub and grandson of Malcolm I. He succeeded to the throne perhaps after killing his cousin Constantine III (reigned 995-997); he was himself killed at Monzievaird by Malcolm (son of Kenneth II), who became Malcolm II. Gruoch, wife of the future King Macbeth, was apparently a granddaughter of Kenneth III.